Read your contacts:
• Allows the app to read data about your contacts stored on your device, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge..Modify your contacts:
• Allows the app to modify the data about your contacts stored on your device, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data..Write call log:
• Allows the app to modify your device's call log, including data about incoming and outgoing calls. Malicious apps may use this to erase or modify your call log..

Record audio:
• Allows the app to record audio with the microphone. This permission allows the app to record audio at any time without your confirmation..

Network:

Full network access:
• Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet..
View network connections:
• Allows the app to view information about network connections such as which networks exist and are connected..

Effects on battery life:

Prevent device from sleeping:
• Allows the app to prevent the device from going to sleep..